Forum: Flashes, Lighting, and Studio
01-02-2015, 02:21 PM
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You're making it way too complicated, there isn't a big retesting cycle. You've set your main. You guess on the fill. It tests at a 1/2 ratio. Drop the power down 1 stop. Done, no need to retest. Move to the next light, etc. Take one reading of the entire setup at the end and you're ready to shoot.
My biggest problem with using guide numbers is sucking at estimating distances in real life and I find a flash meter much quicker to use than a tape measure:).
I don't mean this as a criticism though, people will work in different ways and I'm sure your calculator will be a useful tool for some.
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